A Data-driven Approach to Multi-event Analytics in Large-scale Power Systems Using Factor Model
Abstract
Multi-event detection and recognition in real time is of challenge for a modern grid as its feature is usually non-identifiable. Based on factor model, this paper porposes a data-driven method as an alternative solution under the framework of random matrix theory. This method maps the raw data into a high-dimensional space with two parts: 1) the principal components (factors, mapping event signals); and 2) time series residuals (bulk, mapping white/non-Gaussian noises). The spatial information is extracted form factors, and the termporal infromation from residuals. Taking both spatial-tempral correlation into account, this method is able to reveal the multi-event: its components and their respective details, e.g., occurring time. Case studies based on the standard IEEE 118-bus system validate the proposed method.
Cite
@article{arxiv.1712.08871,
title = {A Data-driven Approach to Multi-event Analytics in Large-scale Power Systems Using Factor Model},
author = {Fan Yang and Xing He and Robert Caiming Qiu and Zenan Ling},
journal= {arXiv preprint arXiv:1712.08871},
year = {2017}
}
Comments
7 pages, 2 figures